Conservation efforts are about to become serious for sharks and rays, as one-quarter of their population is in danger of extinction within the next few decades.
In a new study, the International Union for Conservation of Nature's Shark Specialist Group authored a study to definitively reveal the status of cartilaginous fish, according to a press release. The study appears in the journal eLife.
Shark Specialist Group co-chairman and Simon Fraser University Canada Research marine biologist Nick Dulvy, study lead author, said this study is the first to examine costal sea and ocean populations. Where previous studies only calculate overfishing of sharks and rays, this one shows 249 of 1,041 populations of shark, ray and chimaera fell under the global ICUN red list.
"We now know that many species of sharks and rays, not just the charismatic white sharks, face extinction across the ice-free seas of the world," SSG co-chair and Simon Fraser University Canada Research marine biologist Nick Dulvy said in the release. "There are no real sanctuaries for sharks where they are safe from overfishing."